From mboxrd@z Thu Jan 1 00:00:00 1970 From: Avi Kivity Subject: Re: [PATCH v2 6/8] kvm tools: Add rwlock wrapper Date: Mon, 30 May 2011 15:25:38 +0300 Message-ID: <4DE38CC2.80006@redhat.com> References: <1306748796.14564.62.camel@lappy> <20110530095451.GB8461@elte.hu> <20110530201110.f3bf20b5.yoshikawa.takuya@oss.ntt.co.jp> <1306753954.14564.92.camel@lappy> <20110530202646.eff0ea28.yoshikawa.takuya@oss.ntt.co.jp> <4DE381DB.8040804@redhat.com> <20110530114949.GD22324@elte.hu> <1306756681.14564.95.camel@lappy> <20110530122027.GJ22324@elte.hu> <1306758180.14564.98.camel@lappy> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: Ingo Molnar , Pekka Enberg , Takuya Yoshikawa , kvm@vger.kernel.org, asias.hejun@gmail.com, gorcunov@gmail.com, prasadjoshi124@gmail.com, "Paul E. McKenney" , takuya.yoshikawa@gmail.com To: Sasha Levin Return-path: Received: from mx1.redhat.com ([209.132.183.28]:19164 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932078Ab1E3MZ7 (ORCPT ); Mon, 30 May 2011 08:25:59 -0400 In-Reply-To: <1306758180.14564.98.camel@lappy> Sender: kvm-owner@vger.kernel.org List-ID: On 05/30/2011 03:22 PM, Sasha Levin wrote: > > > > Oh, that's neat. Btw., i think there should be an option to actually > > *force* blatant overcommit: if i typo the option i'd like the tool to > > tell me that i'm probably stupid and refuse to run with that (and > > suggest the force-overcommit option), instead of trying to swap itelf > > to death! > > How much is a 'blatant' overcommit? KVM easily handles x32 of host RAM. > That's close to the limit. Most of memory would be taken by the struct page array, which is about guest_ram/64. -- error compiling committee.c: too many arguments to function